Electric lawn mower and hedge trimmer



Sept. 15, 1931.

W. D. SEAL ELECTRIC LAWN MOWER 'AND HEDGE TRIMMER Filed Sept. 21., 1929 2 Sheets-Sheet 1 3 5 FIG. 1.

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Sept. 15, 1931. w. n. SEAL 4 ELECTRIC LAWN MOWER AND HEDGE TRIMMER 2 Sheets-Sheet 2 Filed Sept. 21. 1929 gig \M 15 FIB.4.

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Patented Sept. 1 5,1931

, I WILLIAIC n. smnor has and, mssounr,

' J ,mmmc Lawn uownnann HEDGE T IMMER,

I I Application filed: septem'ner 21, 1929 Serial No. 394,226. I

- l {The present inventionrelates to lawn mowers and hedgejtrimmers. and aims to provide a novel and improved machine of thatkind. I Another object of the invention is the p'ro- '6' vision of a novel electrically-driven lawn qmower or hedge trimmer whichis convenient I and pr'acticalin use." I j a 'A further object is the provision of a novel 'ficarriage for the electric motor [and cutter f 10 driven thereby.

I With the foregoing and 'other'objects in view, which will be apparentasthe description proceeds, the invention" resides in the construction and arrangement'of' parts, as

and claimed, it being understood'that cha nge's can be made within I the scope of what is claimed, ithout depart ingfromthe spiritof the invention.

" The inventionis illustrated in the accoms wherein d Figurel isa'plan view of the improved Fig. 2'is'a vertical section ontheline 2i-2 Fig. 3 is a front view of the machine, portions being shown in section. a a .I Fig. 4 is a front View illustrating a modi- 'fied form of cutting means.

Fig.f5"is a section on theline 5-5 of Fig. 4.

The carriage comprises upper and lower transverse plates 1"and,2 which have overlapping ears 3 at the terminals thereof.- the intermediate =portions'iotsaid plates being olfset awayirom one another. Spindles 4 35 extend through the ears 3 to fasten the plates 7 1 and'2 together, and said spindles protrude Y beyond the ends of the plates andhavewheels 5 mounted for rotation thereonypreferab ly 4 by meansof ball bearings.

i having its ends engaging the'spindles, and

. nuts fl"v are threaded on said spindles to clamp together and to the inner ears 3 and bars 6 secure the spindles in place. A vertical bearing7 issecured to the bend of the barf} in rear ofthe plates 1 and 2, said'ba'r 6 extending 1 rearwardly, anda caster fork-8 is mounted forwrotation'in the bearing 7, preferahlyby roller bearings. vA caster wheel!) is mounted for rotation in t the fork s, and with the I 12' for about.

as to cut the the plate 2, and provided with forwardly exbar 20has forwardly extending-teeth 27mov- .The frame comprises a V-shaped bar be used for trimming hedges.

wheels 5 provides a three-point wheel supportifor the frame or carriage, permitting the carriage to I readily steered or guided. Brace bars connect the bearing 7 and plates ,1 and 3 13 pivotedto the bar 6 and "56 converge together and are secured to a handle conveniently mov ng the machine An electric motor 1 3 is disposed between and secured to the intermediate portions of the 'plates 1 and 2,'and its armature shaft 14 extends downwardly through the lower plate l 2 and has secured thereto'the cutter blades '15 which move in a horizontal plane below a wire or othersuitable guard 16 se'cured to the plate2. Y

The blades have sharp forward edges so I gras and weeds with a sickle action, the cutter being rotated at a high speedby the electric motor. 1 Figs. 4 and 5 illustrate a mowing machine type of cutting means, including a lower stationary cutter bar 17 having terminalportions 18 extending upwardly and secured to tending teeth 19. A reciprocatory cutter bar 20 is mounted onthebar 17 and has an opening 21 receiving an eccentric22 on the armature shaft 14 so as to reciprocate the bar 20. Said bar 20 .has slots 23 receiving studs24 secured to the bar 17,'and springs 25 are con- 'fined between heads or nuts on said studs and washers 26 hearing on the bar 20 to hold said bar 20 snugly on the bar 17. The cutter ing with a shearing action over the teeth 19,

for, cutting the grass. The bar 17 has an opening 28 below the armatureshaft 14 'for access to the securing means on said armature 0 shaft which fastens the eccentric 22 thereon. The handle 12 has members 30 thereon around which-the electric wire cord 31may be wound,'said cordleading from the motor 13 and being connected, in the operation of the machineyto an'elect-ric lamp socket or other source of electrical current. I

. The machine affords convenient and practical means for mowing lawns, and may also 15 bearing, and bars'secuiedto said aring and Having thus described the invention, what is claimed as new is: v

1. A machineof the character described comprising upper andlower transverse plates 5 having downwardly and upwardly extending portions, respectively at their terminals which 11 one .an hewp ndl en s i e a dfi l'll 1 m 1 11 wheels mounted on said spindles, an electric 10 motor secured to and between said filatsfind cutting means below said'=i.plates.idriwen' kby said motor. 2. A machine awarding t"(fc'liji-i afid i n eluding a-bearing, a caster mount din said miles din to said plates; and spi f t /ts m J c i e. iesa' ldnbarf I 4 ""Intestimony' h i'eof I hereunt v signature 2 

